Detail & Specs
Flat head cap screws have a 90 degree angle underneath the head. When installed, the head of this screw is meant to sit flush with the surface of the work in a countersunk hole.
Measured by overall length, including the head.
A black oxide finish provides minimal corrosion resistance, best for indoor, dry environments. This finish is not suitable for outdoor applications, and will rust when exposed to moisture..
Class 10.9 metric flat head bolts are considered hardened, providing a high strength, high tensile fastening solution. Pair with Class 10 or stronger nuts. These bolts can be used with many different styles of locking and non-locking nuts, tightly clamping together whatever the cap screw is being used to secure.
Also known as a countersunk allen head machine screw, hex drive flat head countersunk socket cap bolt.